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TinyXML cant compare Attribute to the char

 
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paupav
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PostPosted: Sat Dec 20, 2014 7:13 pm    Post subject: TinyXML cant compare Attribute to the char Reply with quote
Code:
bool win::checkIfFScreen(sf::RenderWindow &window)
{
    TiXmlDocument doc;
    TiXmlElement * fullscreen;

    if(!doc.LoadFile("videoSettings.xml"))
    {
        fullscreen = new TiXmlElement( "Window" );
        fullscreen->SetAttribute("Fullscreen: ", 0);
        doc.LinkEndChild( fullscreen );
        fullscreen->Attribute("Fullscreen: ");

        std::cout << typeid(*fullscreen->Attribute("Fullscreen: ")).name() << std::endl;
        doc.SaveFile("videoSettings.xml");
        return false;
    }

    if(*(fullscreen->Attribute("Fullscreen: ")) == '0')
        return false;

    return true;


}

Idea:

So, I wanna store information about persons preference if he wants for the game to be fullscreen or windowed. I've created this bool function that checks if there is "videoSettings.xml" file and returns information about users preference. If the file doesn't exists it will be create with Fullscreen set to 0 (which basically means that the game will be windowed and the user could change it later in the game's settings).

Part that doesn't work:

Code:
if(*(fullscreen->Attribute("Fullscreen: ")) == '0')
    return false;

After adding this two lines I've got Segmentation fault (core dumped).

It seems that that value is stored as char.
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atom0s
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Joined: 25 Jan 2006
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PostPosted: Sat Dec 20, 2014 10:51 pm    Post subject: Reply with quote
You should be calling ->Value() on the attribute to obtain the value data. The value still is a const char* so you will need to convert it to something else if you want to test it as a bool / int value. You can use atoi or similar functions to do that.
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paupav
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Joined: 15 Apr 2011
Posts: 314
Location: P. Sherman 42, Wallaby Way, Sydney
PostPosted: Mon Dec 22, 2014 5:17 pm    Post subject: Reply with quote
Thanks I've solved it.
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